Shipping container



Patented Sept. 8, 1936 'PATENT oi-'Flca smrrmo coN'rAmEn Samuel P. Belslnger, Atlanta, Ga., assignmto Bclsinger, Inc., Atlanta, Ga., a corporation of Georgia Application March 8, 1935, Serial No. 10,094

3 Claims.

This invention relates to the art of shipping container and is particularly concerned with the manufacture of a container from blanks of pulp board material, by utilization of a minimum *of material for the purpose, the container in finished form having flat integral end surfaces presented to the lading and externally, so that the containers may easily slide one on the other.

A container of the general type is described and claimed in my United States Patent No. 1,983,265. The difliculties of manufacturing such containers from pulp board material" (i. e., a' pulp board product such as flbre board or corrugated board or even cardboard, and characterized by its strength of resistance to tension stresses and its relatively great yield and resilience in bending stresses and its relative weakness in shear and endwise compression, as compared with wood), have been set out in my aforesaid patent. V

According to the present invention, a type of container is provided which has an even greater assurance against displacement or relative shifting of the two sections; and is constructed with the top and/or bottom wall in the respective section integral with side walls thereof.

An illustrative form of practicing the invention is shown on the accompanying drawing, in

which:

Fig. 1 is a respective view of the closed and sealed container.

Fig. 2 shows the two sections of the container in superposed but not abutting position.

Figs. 3 and 4 are views showing the types of blanks employed for the illustrated container section.

In the drawing, the container is illustrated as formed of two sections which are of identical perimeter at their open ends, the container be- 40 ing closed by bringing the two sections into abutment at these ends. Each of the sections is formed of one blank as shown in Fig. 3 and two blanks as shown in Fig. 4. Each of these types of blanks is of simple rectangular shape. The blank of Fig. 3 has a central connecting section CI which will become the top or bottom of the package, dependent on whether the section' is employed at the top or bottom of the container. Adjoining the central section Cl are the two side sections Sl and S2 which become side walls of the corresponding sections. These sections are separated by the score lines lll and ll, which may be formed in any desired manner 55 thereon and serve to establishA the reference lines Itherewith; and the side portion S2 has the flange portions F2l and F22 integral therewith. The flange portions are separated from the corre- 10 spondlng side portions by the scoring lines |2 which may be formed by a single operation on a normal scoring machine, for example. The individual adjacent fiange portions are separated by gashes i3 which are substantially in align- 15` ment with the scoring lines ill and i I.

For assembling a section, the several parts of the blank are folded at right-angles, in the same direction out of plane.r A side wall blank S3 or S4 (Fig. 4) is then inserted so that the flange 20 portions of the blank at the corresponding side are overlapping it and one another. These flange portions are then iixedly secured to the side portion S3 or S4. This securing is preferably accomplished by the standard stitching machine of 25 commerce. Since the container section has an open end, the stitching can vbe easily accomplished, and the staples properly clinched at the inside of the container section.

It will be noted that the depth of the side wall 30 portions Sl and S2 and their corresponding fiange portions, is greater than the depth of the side wall portions S3 and S4 in the upper section of the container; while the reverse condition exists in the lower section. The oii'set, or difl'erential of depth is the same, so that the two corresponding side walls or flange portions of the two sections are' in abutment when. the container sections are assembled together. so that there is abutment of the two sections substantially 40 throughout their peripheries.

The flange portions -of the upper section are illustrated as being the ones which are longer than the flange portions* of the lower section. Hence, for example, the long flange portion Fll of the deep-side Sl of the upper section overlaps 'and is secured to the adjacent side S3 of lesser depth, and projects beyond the lower edge il thereof. This upper flange Fll therefore also overlaps the deeper side wall S3 of the lower section. Hence, at each of the four vertical edges, the engagement of the flanges and side walls operates to prevent relative shifting of the two sections in a horizontal direction. 55

The sections may be fllled with any suitable merchandise such as package goods, textlles. etc., and the sections brought together in the aforesaid overlapping relationship. The edges Il, l5, and IS at the open end of the upper section abut throughout the perimeter of the section with the opposing edges Ma, i5a, |6a of the lower section, and serve for transferring at least a portion of the weight of superimposed containers.

The final closure is eifected by a cemented strip T which may be a fabric or cloth tape, which is brought into position overlapping the corresponding side walls while they are in abutment and is secured thereto so that it may operate in tension for preventing separating movement of the two sections and likewise exerts a force for maintaining the opposing side walls in definite abutment.

It will be noted that the container hasV a smooth top and bottom, so that the container may be slid on the floor, or may have another container slid along its top. It can be manufactured substantially without waste. The sections are formed individually without any employment of cement, and the stitches are revealed, and any tampering with the section is immediately revealed. The Sealing strip T maintains the closure of the package and likewise reveals any attempt at tampering therewith. As it is applied while the sections are in abutting relationship, there is no considerable difliculty of Securing a proper closure at the abutting edges, and no great difficulty of penetration of cement is present.

As with the structure of the prior patent, the maximum effect of the valuable property of strength in tension of the material is advantageously employed, while its weaknesses are overcome by the particular arrangement of the parts selected so that such stresses are distributed over large areas, or may be transferred directly to the lading in the manner described in the said patent.

I claim:

1. A shipping container of pulp board material comprising upper and lower sections of identical perimeter at the open ends; each section comprising an integral structure providing opposite side walls'and a connecting wall, said side walls and connecting wall having integral flanges, and a pair of side wall members overlapping and secured to said integral flanges; at least one side wall of one section and its corresponding integral flange having a different height than an adjacent side wall thereof so that said one side wall and its flange extends beyond said adjacent wall, the two sections having their side walls in abutting relation in the closed container with the said wall flange of a longer side wall on one section overaosazsos lapping the longerside wall on the other section for preventing relative shifting of the sections and with each side wall of each section located .substantially in a common plane with the abutting side wall of the other section; and means overlapping the corresponding side walls of the sections and holding the sections against separation.

2. A shipping container of pulp board material comprising upper and lower sections of identical perimeter at the -open ends; each section comprising an integral structure providing opposite side walls and a connecting wall, said side walls and connecting wall having integral flanges, a pair of side wall members overlapping said integral fianges, and stitches connecting said side wall members and fianges; at least one side wall of one section and its corresponding integral flange having a different height than an adjacent side wall thereof so that said one side wall and its flange extends beyond said adjacent wall, the two sections having their side walls in abutting relation in the closed container with the said wall flange of a longer side wall on one section overlapping the longer side wall on the other section for preventing relative shifting of the sections and with each side wall of each section located substantially in a common plane with the abutting side wall of the other section; and means overlapping the corresponding side walls of the sections and holding the sections against separation.

3. A shipping container of pulp board material comprising upper and lower sections of identical perimeter at the open ends; each section comprising side walls and a connecting wall including vertical corner fianges integral with at least two of the side walls and overlapping and stitched to the adjacent side walls for holding the parts of the section in assembled form; at least one side wall of one section and its corresponding integral flange having a different height than an adjacent side wall thereof so that said one side wall and its flange extends beyond said adjacent wall, the two sections having their side walls in abutting relation in the closed container with the said wall flange of a longer side wall of one section overlapping the longer side wall on the other section for preventing relative shifting of the sections and with each side wall of each section located substantially in a common plane with the abutting side wall of the other section; and a binding strip overlapping and cemented to the side walls at the abutting edges thereof for holding the sections against separation.

SVAMUEL P. BELSIN GER. 

